Introduction Cholecystectomy is the standard treatment for symptomatic gallbladder stone disease. However, symptoms such as abdominal pain and dyspepsia may persist even after surgery, if the gallbladder is incompletely removed known as postcholecystectomy syndrome. Case presentation A 55-year-old man with a history of open cholecystectomy presented with a complaint of recurrent pain on his upper abdomen. Abdominal ultrasonography and magnetic resonance cholangiopancreatography revealed a cystic structure in the gallbladder fossa, with a filling defect at the midpoint of the cystic duct, suggesting a retained stone in the cystic duct and residual gallbladder. Therefore, he underwent completion laparoscopic cholecystectomy. He had an uneventful postoperative period with relief of the recurrent pain. Discussion Proper dissection and identification of the gallbladder and cystic duct junction is necessary for complete removal of the gallbladder and preventing postcholecystectomy syndrome. Patients with a retained stone in the residual gallbladder should undergo surgery, and the laparoscopic method can be performed by a surgeon with expertise in this revision surgery. Conclusion In post-cholecystectomy syndrome, symptomatic Patients with retained stone in partially removed gall bladder by open method needs laparoscopic cholecystectomy by an expert surgeon to relieve their symptoms
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